Zhenli Ye Gon (born January 31, 1963 in Shanghai, China) is a Chinese-Mexican businessman currently under suspicion of trafficking pseudoephedrine or ephedrine precursor chemicals into Mexico from Asia. He is the owner and legal representative of Unimed Pharm Chem México, as well as various other Mexican corporations. From 2002-2004, Unimed had been legally authorized by the Mexican government to import thousands of metric tons of pseudoephedrine and ephedrine products into Mexico, as a part of its vast importation business. Pseudoephedrine and ephedrine products at the time were widely used in over-the-counter cold medications such as Sudafed, but could also be used by manufacturers of methamphetamine. Audits conducted by Mexican officials between 2002-06 at Unimed showed no improprieties such as improper diversion of any such chemicals. Nevertheless, after Unimed's license to import pseudoephedrine and ephedrine products ended on July 1, 2005, it was alleged that Mr. Ye Gon and certain employees of his violated the law by continuing to import four unauthorized containers of pseudoephedrine or ephedrine precursor chemicals into Mexico in late 2005 and 2006. Only 4 of Unimed's 291 imported shipments (from Canada, China, England, Germany, Israel, Hong Kong and the United States) into Mexico have ever been questioned. In July 2007, the U.S. government filed an indictment charging that the importation of these four shipments into Mexico was part of a conspiracy to aid and abet the importation of methamphetamine into the United States. Two years later, the U.S. case was dismissed with prejudice by The United States District Court for the District of Columbia, in August 2009.